12578056 has 32 divisors (see below), whose sum is σ = 24805440. Its totient is φ = 5967808.

The previous prime is 12578047. The next prime is 12578063. The reversal of 12578056 is 65087521.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36075 + ... + 36421.

It is an arithmetic number, because the mean of its divisors is an integer number (775170).

Almost surely, 2^12578056 is an apocalyptic number.

It is an amenable number.

12578056 is a deficient number, since it is larger than the sum of its proper divisors (12227384).

12578056 is a wasteful number, since it uses less digits than its factorization.

12578056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 573 (or 569 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 34.

The square root of 12578056 is about 3546.5555120426. Note that the first 4 decimals coincide. The cubic root of 12578056 is about 232.5615114544.

The spelling of 12578056 in words is "twelve million, five hundred seventy-eight thousand, fifty-six".